1055902321 has 2 divisors, whose sum is σ = 1055902322. Its totient is φ = 1055902320.

The previous prime is 1055902307. The next prime is 1055902339. The reversal of 1055902321 is 1232095501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 694902321 + 361000000 = 26361^2 + 19000^2 .

It is a cyclic number.

It is not a de Polignac number, because 1055902321 - 2⁹ = 1055901809 is a prime.

It is a super-2 number, since 2×1055902321² = 2229859422986374082, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1055902321.

It is not a weakly prime, because it can be changed into another prime (1055902301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527951160 + 527951161.

It is an arithmetic number, because the mean of its divisors is an integer number (527951161).

Almost surely, 2^1055902321 is an apocalyptic number.

It is an amenable number.

1055902321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055902321 is an equidigital number, since it uses as much as digits as its factorization.

1055902321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 1055902321 is about 32494.6506520689. The cubic root of 1055902321 is about 1018.2972748177.

Adding to 1055902321 its reverse (1232095501), we get a palindrome (2287997822).

The spelling of 1055902321 in words is "one billion, fifty-five million, nine hundred two thousand, three hundred twenty-one".